Basf se (20240293802). HIGH PURITY TABLETED ALPHA-ALUMINA CATALYST SUPPORT simplified abstract

HIGH PURITY TABLETED ALPHA-ALUMINA CATALYST SUPPORT

Organization Name

basf se

Inventor(s)

Christian Walsdorff of Ludwigshafen am Rhein (DE)

Sung Yeun Choi of Ludwigshafen am Rhein (DE)

Andrey Karpov of Ludwigshafen am Rhein (DE)

Kazuhiko Amakawa of Ludwigshafen am Rhein (DE)

Nicolas Duyckaerts of Ludwigshafen am Rhein (DE)

HIGH PURITY TABLETED ALPHA-ALUMINA CATALYST SUPPORT - A simplified explanation of the abstract

This abstract first appeared for US patent application 20240293802 titled 'HIGH PURITY TABLETED ALPHA-ALUMINA CATALYST SUPPORT

The patent application describes a catalyst support made primarily of alpha-alumina with specific physical properties, suitable for use in various catalytic processes.

• The catalyst support consists of at least 85 wt.-% of alpha-alumina, with a pore volume of at least 0.40 ml/g and a BET surface area of 0.5 to 5.0 m/g.
• The support is in tablet form and contains less than 500 ppmw of potassium, ensuring high purity.
• The process for producing the catalyst support involves forming a feed mixture of aluminum compounds and pore-forming materials, tableting the mixture, and heat-treating it at high temperatures to obtain the final product.
• The shaped catalyst body for producing ethylene oxide by gas-phase oxidation of ethylene contains at least 12 wt.-% of silver deposited on the alpha-alumina support.
• The process for producing ethylene oxide involves reacting ethylene and oxygen in the presence of the shaped catalyst body.

Potential Applications: - Catalytic processes in the chemical industry - Ethylene oxide production for various applications

Problems Solved: - Providing a catalyst support with specific physical properties for efficient catalytic reactions - Ensuring high purity in catalyst supports for sensitive processes

Benefits: - Enhanced catalytic performance - High purity catalyst support - Efficient ethylene oxide production

Commercial Applications: Title: "Innovative Catalyst Support for Enhanced Catalytic Reactions" This technology can be used in chemical manufacturing processes, specifically in ethylene oxide production, where high-performance catalyst supports are crucial for efficient and cost-effective operations.

Questions about the technology: 1. How does the specific composition of the catalyst support contribute to its effectiveness in catalytic reactions? 2. What are the advantages of using a tableted catalyst support in industrial applications compared to other forms?

Original Abstract Submitted

a catalyst support comprising at least 85 wt.-% of alpha-alumina and having a pore volume of at least 0.40 ml/g, as determined by mercury porosimetry, and a bet surface area of 0.5 to 5.0 m/g, wherein the catalyst support is a tableted catalyst support comprising, based on the total weight of the catalyst support, less than 500 ppmw of potassium. the invention moreover relates to a process for producing a tableted alpha-alumina catalyst support, which comprises i) forming a free-flowing feed mixture comprising i-a) at least one aluminum compound which is thermally convertible to alpha-alumina, the aluminum compound comprising a transition alumina and/or an alumina hydrate; and i-b) 30 to 120 wt.-%, relative to i-a), of a pore-forming material; ii) tableting the free-flowing feed mixture to obtain a compacted body; and iii) heat treating the compacted body at a temperature of at least 1100� c., to obtain the tableted alpha-alumina catalyst support. the invention further relates to a compacted body obtained by tableting a free-flowing feed mixture which comprises, relative to the total weight of the free-flowing feed mixture, a) at least one aluminum compound which is thermally convertible to alpha-alumina, the aluminum compound comprising a transition alumina and/or an alumina hydrate; and b) 30 to 120 wt.-%, relative to a), of a pore-forming material. the invention moreover relates to a shaped catalyst body for producing ethylene oxide by gas-phase oxidation of ethylene, comprising at least 12 wt.-% of silver, relative to the total weight of the catalyst, deposited on the tableted alpha-alumina catalyst support. the invention also relates to a process for producing ethylene oxide by gas-phase oxidation of ethylene, comprising reacting ethylene and oxygen in the presence of the shaped catalyst body. the invention allows for the use of specific pore-forming materials that are particularly suitable for obtaining an advantageous pore structure while allowing for a catalyst support having high purity.